Ananlysis of DDoS Attacks In Cloud

A Denial of Service (DoS) is a computer crime where machines and other resources are made unavailable to its legitimate users by flooding the resources with unwanted requests when connected to the Internet. Since most of the functions of the organization are automated and stored in servers, security must be taken care of at the highest level. Distributed Denial of Service (DDoS) is a major threat to the network. Since the network is the basic requirement in cloud computing or other latest technologies and DoS being distributive in nature should be addressed properly. This paper gives the comparison of a healthy network with that of DDoS network in order to define the declination of the performance of a cloud network under this attack. The DDoS network shows how the performance deteriorates in this particular scenario. OPNET MODELER 14.5 is used as a simulation tool.